June 2015
Multilayer Band Pass Filter
For 5725-5850MHz
DEA255787BT-2044A1
2.5x2.0mm [EIA 1008]*
* Dimensions Code JIS[EIA]
RF Components
Theproductsinthiscatalogarenotrecommendedfornewdesign
RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150601 / rf_bpf_dea255787bt-2044a1_en.fm20150601 / rf_bpf_dea255787bt-2044a1_en.fm
Multilayer Band Pass Filter
For 5725-5850MHz
SHAPES AND DIMENSIONS
RECOMMENDED LAND PATTERN EVALUATION BOARD
DEA255787BT-2044A1
Conformity to RoHS Directive
Dimensions in mm
1 IN
2 OUT
3 GND
4 GND
Terminal functions
(4)
(3)
(2)(1)
1.50max.2.50±0.20
2.00±0.20
0.25±0.15
0.50±0.20
0.20±0.10
Marking
[Top view]
[Bottom view]
Dimensions in mm
2.00
1.90
0.600.30
0.60
1.40 0.550.30
Line width be designed to match 50Ω
characteristic impedance depending
on PCB material and thickness. Dimensions in mm
0.60
0.80
2.30
0.60
0.30
2.30
1.10 0.40
0.300.40
RoHS Directive Compliant Product: See the following for more details related to RoHS Directive compliant products. http://product.tdk.com/en/environment/rohs/
Theproductsinthiscatalogarenotrecommendedfornewdesign
RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150601 / rf_bpf_dea255787bt-2044a1_en.fm20150601 / rf_bpf_dea255787bt-2044a1_en.fm
DEA255787BT-2044A1
ELECTRICAL CHARACTERISTICS
・Ta: +25±5°C
TEMPERATURE RANGE
Item Frequency Range
(MHz) Min. Typ. Max.
Insertion Loss (dB) 5725 to 5850 — 1.00 1.6
Return Loss (dB) 5725 to 5850 9.54 22.8 —
Ripple (dB) 5725 to 5850 — — 0.60
Attenuation (dB)
1908 to 1950 50 60.3 —
3816 to 3900 47 — —
11450 to 11700 25 47.1 —
Characteristic Impedance (:)50 (Nominal)
Operating temperature Storage temperature
（°C） （°C）
–40 to +85 –40 to +85
Theproductsinthiscatalogarenotrecommendedfornewdesign
RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150601 / rf_bpf_dea255787bt-2044a1_en.fm20150601 / rf_bpf_dea255787bt-2044a1_en.fm
DEA255787BT-2044A1
FREQUENCY CHARACTERISTICS
INSERTION LOSS ATTENUATION
RETURN LOSS
3.0
2.0
2.5
3.5
4.0
1.5
1.0
0.5
0.0
Insertion Loss(dB)
4500 4700 4900 5100 5300 5500 5700 5900 6100 6300 6500
Frequency(MHz)
30
20
40
60
70
50
80
10
0
Attenuation(dB)
1000 3000 4000 5000 6000 7000 8000 9000
10000 11000 12000
2000
Frequency(MHz)
30
20
25
15
10
5
0
Return Loss(dB)
4500 4700 4900 5100 5300 5500 5700 5900 6100 6300 6500
Frequency(MHz)
Theproductsinthiscatalogarenotrecommendedfornewdesign
RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
RECOMMENDED REFLOW PROFILE
t3 : Time within 5°C of actual peak temperature
The maximum number of reflow is 3.
Preheating Soldering
Critical zone (T3 to T4) Peak
Temp. Time Temp. Time Temp. Time
T1 T2 t1 T3 t2 T4 t3
150°C 200°C 60 to 120sec 217°C 60 to 120sec 240 to 260°C 30sec max.
t3
t1
Preheating
t2
Soldering
T3 T3
T4
T2
T1
t: Time
T: Temperature
Peak
6°C/sec
or lower
3°C/sec
or lower
Theproductsinthiscatalogarenotrecommendedfornewdesign
RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150601 / rf_bpf_dea255787bt-2044a1_en.fm20150601 / rf_bpf_dea255787bt-2044a1_en.fm
REMINDERS FOR USING THESE PRODUCTS
Before using these products, be sure to request the delivery specifications.
SAFETY REMINDERS
Please pay sufficient attention to the warnings for safe designing when using these products.
The products listed on this catalog are intended for use in general electronic equipment (AV equipment, telecommunications equipment,
home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement equipment,
industrial robots) under a normal operation and use condition.
The products are not designed or warranted to meet the requirements of the applications listed below, whose performance and/or quality
require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to society, person
or property.
Please understand that we are not responsible for any damage or liability caused by use of the products in any of the applications below
or for any other use exceeding the range or conditions set forth in this catalog.
(1) Aerospace/Aviation equipment
(2) Transportation equipment (cars, electric trains, ships, etc.)
(3) Medical equipment
(4) Power-generation control equipment
(5) Atomic energy-related equipment
(6) Seabed equipment
(7) Transportation control equipment
(8) Public information-processing equipment
(9) Military equipment
(10) Electric heating apparatus, burning equipment
(11) Disaster prevention/crime prevention equipment
(12) Safety equipment
(13) Other applications that are not considered general-purpose
applications
When using this product in general-purpose applications, you are kindly requested to take into consideration securing protection circuit/
equipment or providing backup circuits, etc., to ensure higher safety.
REMINDERS
Theproductsinthiscatalogarenotrecommendedfornewdesign